Joint construction



S- 945. s. M. BRATTQN JOINT CONSTRUCTION Filed Oct. 24, 1941 4 Sheets-Sheet 1 r n m a 9 6 F mi N d a Q. r 9.. wa &

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STEAM z- 7, s. M. BRATTON 2,

JOINT CONSTRUCTION Filed Get. 24, 1941 4 Sheets-Sheet 2 lnu enter:

STEAM WATER 35 a ifisfalmuel Jflflnati'on r t awn/mags Aug. :7, 1945. BRA-"0N 2,381,432

501m CONSTRUCTION Filed Oct. 24, 1941 4 Sheets-Sheet s IlllllllllllllllllllllllllllllIIIIIIZ Patented Aug. 7, 1945 JOINT CONSTRUCTION Samuel M. Bratton, Wilmington, Del., assignor to The Pusey & Jones Corporation, Wilmington,

Del., a corporation of Delaware v Application October 24, 1941,,Serial No. 416,417 11 Claims. (0134-124) This invention relates to improved fluid-tight joints between rotatable and non-rotatable members. More particularly, in the adaptation shown in the accompanying drawings, the invention is concerned with a fluid-tight joint construction for the steam and condensation water return lines for drying rolls used in paper mills.

In accordance with standard practice, large steam heated drying rolls in paper mills are carried by hollow journals supported for rotation in fixed bearings carried by the roll stands. Steam for heating the rolls is introduced through the hollow journals, and water of condensation formed in the rolls is withdrawn through pipes extending 'coaxially through the hollow journals, the pipes being mounted for rotation with the journals in some cases and being non-rotatable in others. Various means have been employed in the past for establishing a steam tight joint between surfaces associated with the rotatable journals and stationary steam conducting casings. Also, similar means have been provided for establising fluid-tight joints between the coaxial condensation water return pipes and stationary discharge pipes. ployed in such constructions necessarily are subjected to friction, by reason of relative movement between the elements to be sealed, the sealing means are subject to wear and must be replaced from time to time, in order to maintain the joints fluid-tight.

The primary object of the present invention is to simplify joint constructions of the type referred to. More particularly, the invention aims to provide a construction facilitating removal and installation of the parts to facilitate replacement of the sealing means normally subjected to wear.

A further object of the invention is to provide a fluid-tight joint construction that may be removed from the elements to be sealed and replaced thereon with the utmost speed, to the end that the apparatus with which the joint is associated may be out of commission for only a minimum period of time.

A further .object of the invention is to provide a'construction whereinone set of elements, including worn parts, may be readily and expeditiously removed and a new set of elements, in-

.Qcluding replacement parts, substituted in a minimumof time and with little efiort.

' A' further object of the invention is to provide a joint construction wherein the pressure applygmeans' for the sealing elements may be accutely adjusted, before the joint assembly is in- Since the sealing means emalled in operative relation to the other elements.

A further object of the invention is to provide a joint construction including an assembly that maybe removed and replaced, for the substitution of new parts for old, without performing any plumbing operations, such as breaking pipe joints, threading new pipes, installing new pipes in place of old ones or the like.

A further object of the invention is to provide,

in a paper drying roll construction, a joint assembly that may be removed by axial movement relative to the roll, replaced by a similar movement in the opposite direction and bolted in position, without disconnecting any pipe fittings or otherwise disturbing the steam and condensation water return lines.

Other and further objects and advantages of the invention will be apparent to those skilled in the art from a consideration of the following description of certain embodiments of the invention, shown by way of illustration in the accompanying drawings, in which:

Figure 1 is a side elevation of a. joint in accordance with the present invention, shown in association with a hollow journal and supporting bearing for a paper drying roll.

Figure la is a side elevatiomsimilar to Figure 1,

on a reduced scale, showing a jack screw arrangement.

Figure 2 is a vertical longitudinal section of the device of Figure l, on an enlarged scale.

Figures 3, 4, 5 and 6 are sections taken on correspondingly numbered section lines on Figure 2.

Figure 7 is a section on line 1-1 of Figure 1.

Figure 8 is an end elevation, looking from the right of Figure 1.

Figures 9, 10 and 11 are sections taken on correspondingly numbered section lines on Figure 1.

Figure 12 is a vertical section on line l2--l2 of Figure 9.

Figure 13 is a vertical section on line l3-I3 of Figure 1.

Figure 14 is a vertical longitudinal section,

similar to Figure 2, showing a modification.

Figure 15 is a section on line l5-l5 of Figure Figure 16 is an end elevation of the device shown in Figure 14, and

Figure 1'7 is a detail, plan view of the righthand end of Figure 14.

In the paper-making art, it is of the maximum importance that the paper-making machine and I all of the other machines in theline be operatedas continuously as possible, with a. minimum of interruptions, and that each shut-down for repairs or the like be for as short a duration as possible. In some mills, it has been calculated that a shut-down results in a net loss of approximately six dollars per minute. In standard paper-making plants, each line, behind the press rolls, has a great plurality of steam heated drying rolls over which the 'web of paper passes, to remove the water therefrom, before it is calendered. In some cases, there are as many as one hundred or more rolls, and each necessarily has associated therewith, a fluid-tight joint and a condensation water return joint. When the sealing members associated with the joints become worn, the entire line, from the Fourdrinier machine to the last calender roll, must be stopped, while the joints are repaired, by the replacement of new sealing rings or the like. With prior art joint constructions, this operation normally requires an interruption of the plant of from six to eight hours, with a corresponding loss in the output of the mill.

The principal cause of this substantial delay in repairing a drying roll joint is the necessity for performing a real plumbing job, including the disconnection of the steam and water pipes from the joint casing, refitting the pipes in a new casing and re-connecting the pipes to the supply lines. The fluid-tight joint assemblies of the prior art must be removed from the journal and the axial Water pipe by axial movement relative thereto, but this operation cannot be performed until the lateral pipe connections are removed.

The present invention provides a novel construction wherein the joint assembly may be removed and replaced by axial movement relative to the roll, without disconnecting or otherwise disturbing the steam and return water pipes. In

fact, the joints may be removed and replaced while the rolls are kept running, by closing appropriate steam and water valves.

As shown in Figure 1, a hollow drying roll jou'rnal 26 is mounted in a bearing 2| carried by a bearing support 22 which may be a part of the roll stand, the journal being held in place by a bearing cap 23 of conventional design. A steam and water manifold or bracket 25 has a flange 26 bolted to a seat 21 carried by the bearing support 22, the position of the manifold being accurately determined by shims 28, interposed between the flange :26 and the face of the seat 21, and by dowel pins 26a.

The manifold has an upper flange 29 provided with an upper face 38, preferably plane, and in any case disposed in parallel relation to the journal axis.

Steam and. condensation water return pipes 3|, 32 are secured by pipe thread joints in downwardly facing hollow bosses 33, 34, forming an integral part of the manifold 25, the internal passages of which will be described below.

A joint assembly comprising a casing indicated generally at 35 has a flange 35' provided with a lower face 36 mating with the face 36 of the manifold 25 and is secured thereon by bolts 31. The joint assembly, including the .casing 35 establishes communication between the water and steam passages in the manifold 25 and the water and steam passages associated with the journal, in a manner now to be described.

Referring to Figure 2, an axially disposed condensation water return pipe 38 extends axially through the hollow interior 39 of the journal 28'. This pipe is connected at its inner end to devices of well known type for removing water of condensation from the interior of the drum and, in

the embodiment illustrated, rotates with the drum. The end face of the journal 20 carries a sleeve member 40 having a reduced portion 42, in which a plurality of spacing and centering lugs 43, fast on the pipe 38, are disposed, as illustrated in Figures 2 and 3.

The outer face 45 of the sleeve 40 is disposed .in contact with the radial face 46 of a sealing ring 41, constituting a part of the joint assembly and preferably retained in place by a circumferential flange '48, associated with the sleeve 48. The sealing ring may be of any approved type, but preferably made from a graphite and carbon composition. The other radial face 49 of the ring 41 is disposed in contact with the radial face 58 of a non-rotatable sealing ring 5| associated with the joint assembly. The ring 5| is supported by. a plurality of 'coil compression springs 52 surrounding lugs 53 formed on a clamping ring 54 secured to the ring 5| by bolts 55, the other ends of the springs 52 surrounding lugs 56 carried by a similar clamping ring 51 secured to an end flange 58 at the forward end 59 of the joint casing 35 by bolts 60. A metallic Sylphon 6| of well known construction has its ends clamped under the rings 54, 51, thereby providing a gas-tight connection between the casing 35 and the ring 5|, yet permitting axial movement of the ring 5| relative to the casing under the influence of the springs 52. The casing 35 extends rearwardly from the forward portion 59 adjacent the flange 58 in coaxial relation to the journal 2|! and the pipe 38 and is provided with a transverse partition 65 adjacent its rear end and a downwardly projecting rib or feather 66 at an intermediate point. The partition 65 is centrally apertured and carries a collar 61 having a circumferential shoulder 68 formed therein. One end of a Sylphon 69 is pressed over the shoulder 68 and is secured in place by a soldering or brazing 10, or by any other appropriate means. The collar 61 also carries a plurality of axially projecting pins 1| about which compression springs 12 are coiled.

The pins 1| extend loosely through appropriate apertures 13 in a disc 14 having a peripheral slot 15 embracing the rib 66 to prevent rotation of the disc relative to the casing. The ends of the springs 12 bear against the outer face of the disc 14. The adjacent end of the Sylphon 69 is connected to the disc by a shoulder "and solder Or brazing 11, in a manner similar to the other end of the Sylphon.

A sealing ring 18, preferably of carbon and graphite composition, is carried adjacent the opposite face of the ring 14 by' a circumferential flange 19. The other face of the ring 18 is disposed in contact with the radial face of a collar 8| fast on an intermediate, screw-threaded portion 82 of the pipe 39 and hold in place by a lock nut 83. It should be noted that the outer end 38' of the pipe 38 is of reduced diameter and extends through the rings 18, 14 and the collar 61 in spaced relation, and is in communication with the chamber 65, defined by the partition 65.

The main interior chamber 85 of the casing 35 which communicates with the interior of the Sylphon 6| and thence with the hollow interior 39 of the journal -20 has a downwardly extending passage 86, opening through the lower face 36 of the joint assembly by a port 81.

The chamber 65' adjacent the end of the casing 35 is in communication with a forwardly extending passage 83, disposed behind the cham ber 85, as viewed in Figures 1 and 2, and to the assumed by the bolts 31.

right thereof as viewed in Figures and 6. A spigot 95 may be opened whenever it is desirable todischarge water or air from the chamber 99. At its forward end,.the chamber 99 turns downwardly and provides a passage 9| opening in a port 92 through the lower surface 36 of the easbosses 33, 34 upwardly (Fig. 9) to spaced ports I99, I9I in the plane upper face 39 of the flange 29. As indicated in Figures 9-12, the boss 33 communicates with a rearwardly and upwardly directed passage I92 terminating in the port I99,

while the boss 34 communicates with a similar passage I93 behind the passage I92 and terminating in the upwardly facing port IN, the passages being separated by a partition I94. The bosses and passage walls are preferably cast integrally with vertical webs I95, I96 and an inclined web I91, connected to the mounting flange 26. The latter flange has bolt holes I99 therein, for bolts I99 and additional holes 26?; forthe dowel pins 26a.

The end wall of the manifold 25 has an outwardly projecting web or flange H9, to which an upwardly projecting arm H2 is pivoted by a removable pin III. The arm adjacent its lower end carries a yoke I I3 in which a screw H3 is threaded, with its end in engagement with the face of the flange I I 9, so that the angular position of the arm II2 may be accurately adjusted about the pivot III. The upper end of the arm II 2 is provided with apertured, bifurcated portions H5, H6, in which there is disposed a transverse plug II1 having a diametric, threaded bore for the reception of a jack screw H8. The jack screw has a ball head II 9 disposed within a socket associated with a foot I29 shaped and positioned to bear against the end wall I2I of the casing 59.

The end face of the foot I29 preferably fits within a concave sooketformed in the end wall I2 I'to prevent lateral replacement of the parts. The jack screw carries an operating crank I 23 on its rear end. The pin III may be readily withdrawn, to permit removal of the entire jack assembly, after it has performed its function, as hereinafter explained.

'In the initial installation of the apparatus of the present invention, the manifold 25 is mounted upon the seat 21 of the bearing stand 22 in accurately predetermined relation to the end face of the journal 29. This is preferably accomplished by the use of a template, having a vertical flange adapted to be secured to the end of the journal 29 by the bolts that eventually hold the sleeve 49 thereon. The template also has a horizontal flange provided with bolt holes positioned on centers corresponding to the centers later The manifold 25 is bolted to the horizontal flange by bolts extending through the last-mentioned holes, and the space, if any, between the flange 26 of the manifold and the seat 21 is filled with shims. The bolts I99 are then drawn up to secure the manifold in position. It will be understood that there is suflicient clearance between the bolts I99 and the bolt holes I98 to allow relative movement between the manifold 25 and the seat 21, so that the manifold may be accurately adjusted relative to the journal before the bolts I99 are drawn up. In order that this position may not be accidently disturbed, holes are drilled in the seat 21- by a conventional steel drill inserted through the dowel openings 26b. Dowel pins 26a are then driven through the holes 26b into the aligned holes in the bearing support, whereby the position of the. manifold 25 is permanently maintained. The steam and water pipes 3I, 32 may be connected to the manifold at any time, either before or after the template is removed.

The sleeve 49 is next mounted upon the end face of the journal 29 by its bolts and the sealing ring 41 positioned against the end face thereof. The collar 8| and lock nut 83 are appropriately secured on the threaded portion 82 of the pipe 38.

The entire joint assembly with the sealing elements and the resilient means thereof in position is next slipped over the end of the pipe 39, until the flange 35 rests upon the flange 29. The jack screw arm is mounted upon the flange H9 and the screw I I4 adjusted to align the jack screw I I8 with the casing 35. The crank I23 is then turned, so that the joint assembly as a whole is forced axially toward the journal, compressing the coil springs 52 and 12 and causing the lower plane face 36 of the flange 35' to slide along the surface 39 of the flange 29 until the bolt holes in the two flanges are in alignment, whereupon the bolts 36 are inserted and tightened, to hold the assembly in place. The jack screw II8 may then be backed oh and the jack assembly removed, by withdrawing the pin III.

The form of the invention shown in Figures 14-16 differs from the first form primarily in that it accommodates a non-rotatable condensation water return pipe 381:. With such a pipe, the use of a sealing assembly of the type provided in the first form of the invention by rotatable and stationary rings 8I and 14 and the sealing ring 18 is unnecessary. The joint for the steam passage is substantially identical to that previously described, and comprises a flange-58a on the casing 59a, a' Sylphon 6Ia connecting the flange to a ring 5Ia, a carbon-graphite disc 41a. and a sleeve 49a carried by the hollow journal 29a. The manifold 25a. may be identical to the one previously described, and may be mounted in the same way.

The outer end portion I25 of the casing 59a has a, transverse partition I26 and an end wall I21, defining an inner, condensation water chamber I29 communicating with a passage 9911, extending forwardly and downwardly and terminating in a port 9211., in registry with a port I9Ia in the manifold, as previously described in connection with the first form of the apparatus.

A sleeve I39, threaded on the end of the pipe 38a, has an outwardly projecting, circumferential flange I3I disposed opposite the partition I26, with a gasket I32 interposed therebetween,

to make a fluid seal between the sleeve and the casing.

The sleeve I39 at its outer end is integral with a spider I35 connected to a shaft I36, extending outwardly through an aperture in the end wall I21 and secured in fluid-tight relation there to by a gland comprising packing I31 and a ring I38, secured to the end wall by bolts I39, adapted to place the packing under compression. A-cap I49 surrounding the shaft I36 has radial serra-'.

tions mating with similar serrations I on the end face ofthe end wall I21. A nut I42 on a threaded portion I43 of shaft I36 may be tightened, to draw the sleeve I30 and the flange I3I thereof toward the partition I26, to compress the gasket I35 and thereby provide a steam-tight joint. If desired, a key I430. may be disposed in mating slots in the shaft I36 and the cap I40, to prevent relative rotation of those parts, by permitting axial movement of the cap I40 along the shaft I36, to disengage the serrations I4I, when desired, in order to change the angular position of shaft I36 and pipe 33a. In many cases. the key I43a. may be omitted as the nut I42 may be relied upon to prevent inadvertent rotation of the shaft I36 relative to the cap I40.

The outer end of the shaft I36 is provided with angularly disposed flattened surfaces I45, I46 and with a substantially semi-cylindrical surface I41, adapted to receive a specially shaped wrench I48, so that the shaft and the pipe 38a may be held against inadvertent rotation when the nut I42 is tightened. It is important with stationary syphon pipes that they be maintained in accurately predetermined annular position, with the water removing devices thereof substantially at the bottom of the drying roll, or at angle, if desired, according to the speed of the drying roll. The point provided by the junction of the flattened sides I45, I46, provides a good indication of the correct position of the parts.

When it is desired to remove the joint assembly shown in Figures 14-16, it is simply necessary to remove the nut I42, wrench I48 and bolts 31a, whereupon the assembly may be moved axially away from the hollow journal, leaving the sleeve I30, spider I35 and shaft I36 in position on the pipe 38a. After a new sealing ring 41a or any other part has been substituted for a worn one, the assembly may be replaced by a movement in the opposite direction. If desired, a jack screw assembly similar to that employed with the first form of the invention may be used to force the joint casing and associated parts into proper position.

It will thus be seen that the present invention provides a novel form of joint that may be installed and removed with great facility, without disturbing any pipe connections or the like.

Although the invention has been described in considerable detail, by reference to the two preferred forms shown in the accompanying drawings, it must be understood that the invention is not limited to the details of construction thereof, but covers all modifications coming within the scope of the app nded claims and their equivalents.

I claim:

1. In combination, a paper drying roll, a rotatable hollow journal therefor having steam and water passages leading therethrough, a supporting bearing for the journal, a fixed manifold independent of the bearing and having steam and water passages permanently connected to steam and water lines, and a joint assembly separate from and independent of the bearing and comprising a casing removably carried in normally fixed relation by the manifold and having passages communicating respectively with the passages in the journal and in the manifold, a packing member between the casing and the rotatable journal, and resilient means non-rotatably carried by the casing for urging the packing member against a surface rotating with said journal, said casing and said resilient means being supported on said manifold for ready removal therefrom and from the bearing for replacement of said packing member without disturbing the support of the journal in the hearing or the connections of said steam and water lines with the manifold.

2. The combination with a paper drying roll having a hollow journal Providing a steam passage leading to the interior of the roll, a fixed bearing for the journal and an axial condensation water return pipe extending outwardly through the journal, of a manifold supported in fixed position relative to the bearing and having a face disposed in parallel relation to the roll axis, said manifold having independent steam and water passages opening through said face and permanently connected at their other ends to steam and water pipes, and a joint assembly separate from and independent of said bearing and comprising a casing having a face parallel to and supported upon the face of the manifold, whereby the assembly may be removed from the manifold by sliding movement axially of the roll, without afiecting said bearing, said casing having a water passage registering with the manifold water passage and connected to said axial pipe, and a steam passage registering with the manifold steam passage, said assembly further comprising a rotatable seal connecting the steam passage to the hollow journal, and non-rotatable resilient means carried by the casing and urging the seal against the journal.

3. The combination with a paper dryingroll having a hollow journal providing a steam passage leading to the interior of the roll, a fixed bearing for the journal and an axial condensation water return pipe rotatable with and extending outwardly through the journal, of a manifold supported in fixed position relative to the bearing'and having a face parallel to the roll axis, said manifold having independent steam and water passages opening at one of their ends through said face and permanently connected at their other ends to steam and water pipes, and a joint assembly separate from and independent of said bearing and including a casing having a face parallel to and supported upon said face of the manifold, whereby the assembly may be removed from the manifold by sliding movement axially of the roll, while leaving the journal supported by the bearing, said assembly comprising a water passage registering with the manifold water passage, a rotatable seal connecting the water passage to the axial return water pipe, a steam passage registering with the manifold steam passage, and a rotatable seal connecting the steam passage to the hollow journal.

4. The combination with a paper drying roll having a hollow journal providing a. steam passage leading to the interior of the roll, a fixed bearing for the journal and an axially disposed, non-rotatable condensation water return pipe extending through the journal in spaced relation to the inner wall thereof, of a manifold supported in fixed position relative to the bearin and having a face disposed parallel to the roll axis, said manifold having independent steam and water passages opening at one of their ends through said face and permanently connected to steam and water pipes at their other ends, and a joint assembly separate from and independent of said bearing and having a face, parallel to and supported upon said face of the manifold, whereby the assembly may be removed from the manifold by sliding movement axially of the roll, while leaving the journal supported by the bearing, 'said assembly having a water passage registering at one of its ends with the manifold water passage and rigidly connected at its other end to the axial return water pipe, a

face parallel to the roll axis and independent steam and water passages opening at one of their ends through said face and at their other ends in external pipe connections, steam and water pipes independent "of said standard, per-- manently connected to said external pipe connections, and a joint assembly comprising a casing having a face parallel to and supported upon said face of the manifold for removal therefrom by sliding movement in an axial direction, said assembly having steam and water passages therein registering at one of their ends with the passages in the manifold and at their other ends with the journal.

6. The combination with a hollow journal for a paper drying roll, of a bearing supporting said journal, at supporting standard for the bearing, fixed steam and water pipes pipes separate from and independent of said standard and said bearing, an independent manifold carried by said standard in predetermined, fixed position relative to the bearing and the journal, said manifold having independent steam and water passages permanently connected at one of their ends to said fixed steam and water pipes and opening at their other ends through an exterior face of the manifold, and a joint assembly comprising a casing having a face supported upon the face of the manifold for ready removal therefrom independently of the standard, bearing and journal, said assembly having steam and water passages therein registering at one of their ends with the passages in the manifold and at their other ends with the journal.

7. For use with a steam heated paper drying roll of the type having a hollow journal mounted in a bearing carried by the roll stand, a manifold for steam and for water of condensation, said manifold comprising means for mounting the same upon the roll stand in predetermined fixed relation to the bearing, but in non-supporting relation with respect thereto said manifold having "surface shaped and positioned to extend parallel to the journal axis when the manifold is so mounted, and walls in the man- 'ifold independent of the mounting means de- 8. For use with a steam heated paper drying roll assembly of the type including a roll stand, a bearing carried thereby, a drying roll having a hollow journal mounted in said bearing and having steam and condensation passages extending therethrough, and steam and condensation water return pipes independent of and supported in fixed relation to the roll stand; a manifold comprising means for connecting the same to and supporting the same from the roll stand in predetermined fixed relation to the bearing but in non-supporting relation with respect thereto, a joint supporting surface on the manifold, a pair of pipe receiving bosses spaced from said surface and adapted to be permanently connected to said steam and condensation water return pipes, and walls within said manifold defining independent steam 'and condensation water return passages leading from said bosses and terminating at their other ends in ports opening through said joint supporting surface, whereby a joint assembly may be fastened upon said joint supporting surface of the manifold to establish communication between said ports and the steam and condensation water passage associated with said hollow journal.

9. In combination, a drying roll having a hollow journal, a supporting bearing therefor, a condensation water return pipe extending axially through and beyond the hollow journal in spaced relation thereto and rotating therewith and defining an annular steam passage, a sealing surface rotating with the hollow journal and normal to the roll axis, a second sealing surface rotating with the pipe and normal to the roll axis, a fixed steam. and water manifold separate from and independent of said bearing and having a joint assembly supporting face having steam and water ports opening therethrough, and a joint assembly comprising a casing having a face supported upon and mating with the manifold face, steam and water passages registering with the manifold ports and with the journal passage and pipe, non-rotatable sealing surfaces parallel to and facing the firstmentioned sealing surfaces, sealing rings between the mutally facing sealing surfaces, and resilient means for establishing pressure contact between said sealing surfaces and said rings, said mating faces on the manifold and assembly serving to permit installation of the assembly upon the manifold by movement axially of the roll axis.

10. In combination, a drying roll having a hollow journal, a supporting bearing therefor, a condensation water return pipe extending axially through and beyond the hollow journal in spaced relation thereto and rotating therewith and defining an annular steam passage, a sealing surface rotating with the journal and normal to the rollaxis, a second sealing surface rotating with the pipe and normal to the roll axis, a fixed steam and water manifold separate from and indepedent of sa d bearing and having a plane face parallel to'the roll axis and steam and water ports opening therethrough, and a joint assembly comprising a casing having a face parallel to and mating with the manifold face, steam and water passages registering with the manifold ports and with the journal passage and the pipe, non-rotatable sealing surfaces parallel to and facing the first-mentioned sealing surfaces, and sealing rings between the mutually facing sealing surfaces, whereby the sealing assembly may be installed on the manifold by sliding movement of the assembly face along the parallel face. of the manifold axia ly of the roll.

11. In combination, a drying roll having a hollow journal, a supporting bearing therefor,

a condensation water return pipe extending.

axially through and beyond the hollow journal in spaced relation thereto and rotating therewith and defining an annular steam passage, a sealing surface rotating with the journal and normal to the roll axis, a second sealing surface rotating with the pipe and normal to the roll axis, a fixed steam and water manifold separate from and independent of said bearing and having a face parallel to the roll axis and steam and water ports opening therethrough, and a SAMUEL M. BRATION. 

